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Climate Controller Type 148941 / Type 148942 / Type 148943 / Type 148944
Operation manual
5 Functionality of the Climate Controller
5.1 General
The type number of the Climate Controller is displayed on the start screen.
The Climate Controller can be switched on and off using the On/Off key (9).
In this mode, the display is switched off and the controller is disabled. Only
the protection functions (unit frost protection, room frost protection, heat
protection) remain enabled. This function is not enabled when using the key
card function.
The ring LED gives feedback each time a button is pressed. The main screen
is displayed if no key is pressed for 3 seconds.
5.2 Fan Control
The EC fan is controlled by the 0-10 V output of the Climate Controller.
Manual fan stages and/or Automatic mode can be adjusted using keys (7)
and (8). A user-set speed is overwritten by the timer channel at the start of a
new timer channel segment. The speed increment between the individual
stages depending on the number of fan stages set up:
5.3 Temperature Control
The Climate Controller has an internal temperature sensor, which is used by
default for temperature control. Optionally, input 1 can be configured with an
external temperature sensor. In this case, this measured value is automatically
the basis for temperature control.
The key fields of the Climate Controller are calibrated as soon as
mains power is applied. Therefore the user interface should not be
touched for 60s after voltage has been connected.
1 stage: 100% increment
2 stages: 50% increments
3 stages: 33% increments
4 stages: 25% increments
5 stages: 20% increments (default setting)
The fan is actuated for 1s at maximum speed to ensure the safe
start-up of the fan.
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